Sonelastic SA-AG Manuale utente

Installation and Operation Manual

SA-AG

Adjustable support for large specimens

ATCP Physical Engineering, SonelasticDivision

Lêda Vassimon, 735-A - Ribeirão Preto - Brazil - 14026-567

Telephone: +55 (16) 3289-9481

www.sonelastic.com

Sonelastic®Systems

SA-AG Adjustable support for large specimens

Page 2 of 19

Installation and Operation Manual

SA-AG

Adjustable support for large specimens

Manufactured by:

ATCP do Brasil –Alves Teodoro Cerâmicas Piezoelétricas do Brasil Ltda.

ATCP Physical Engineering, SonelasticDivision

Rua Lêda Vassimon, 735-A

Ribeirão Preto –SP, Brazil

CEP 14026-567

CNPJ: 03.970.289/0001-60

Inscrição estadual: 797.013.492.110

Brazilian Industry

www.sonelastic.com

ATCP reserves the right to change the product or this manual without notice.

Version 3.0

January/2022

TABLE OF CONTENTS

1. Introduction ................................................................................................. 05

2. Definitions .................................................................................................... 05

3. Application and features ............................................................................... 05

4. Configuration, parts, accessories and optional items .................................... 06

5. Parts identification ....................................................................................... 07

6. Specifications ............................................................................................... 08

7. Specimen ...................................................................................................... 09

7.1 Recommended aspect ratios ..................................................................... 09

7.2 Placing the specimen ............................................................................... 10

8. Support installation ...................................................................................... 11

8.1 Requirements ......................................................................................... 11

8.2 Typical arrangements .............................................................................. 11

8.3 Mounting the support in the default configuration........................................ 13

8.4 Mounting the support with extension rod.................................................... 14

8.5 Mounting the acoustic sensor ................................................................... 14

9. Support operation ......................................................................................... 15

9.1 Positioning the specimen.......................................................................... 15

9.2 Positioning the acoustic sensor ................................................................. 15

10. Acquisition and excitation modes ................................................................ 16

11. Warnings and support transportation.......................................................... 17

12. Maintenance and troubleshooting ............................................................... 17

13. Symbology .................................................................................................. 17

14. Technical support and warranty .................................................................. 18

15. Statement of responsibility.......................................................................... 18

Notes ................................................................................................................ 19

Sonelastic®Systems

SA-AG Adjustable support for large specimens

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1. Introduction

ATCP Physical Engineering equipment and products were projected and manufactured to

provide a long-lasting and top-rated performance. This Installation and Operation Manual

contains all necessary information regarding the use and maintenance of SA-AG Support.

Carefully read this manual before using the support. Improper use may

damage the product and affect its performance.

2. Definitions

Impulse Excitation Technique: The Impulse Excitation Technique is a non-destructive

technique to determine the elastic moduli and damping of materials by the resonance

frequencies of test specimens. ASTM E1876 is the main standard related to the Impulse

Excitation Technique.

Resonance Frequencies: Specimen natural frequencies of vibration.

Elastic modulus: Elastic modulus or Young’s modulus is defined as the slope of the stress-

strain curve at the elastic region, as described by Hooke’s Law. The elastic modulus

determined by Impulse Excitation Technique is also termed as dynamic elastic modulus.

Damping: Damping is the phenomenon by which mechanical energy is dissipated in dynamic

systems. It is directly linked to the presence of defects and to the material microstructure.

3. Application and features

SA-AG Support is an apparatus to support specimens for non-destructive characterization of

Young’s modulus and damping of materials by Impulse Excitation Technique, in agreement

with ASTM E1876 and correlated standards. SA-AG Support was developed to be used

alongside Sonelastic®Systems.

SA-AG Support allows large rectangular and cylindrical specimens to rest on the nodal lines

of the fundamental flexural vibration mode (for a specimen of length L, these nodal lines are

0.224L distant from the ends). This support offers a practical system to adjust the distance

between the supporting blocks. SA-AG Support also allows tests based on torsional and

longitudinal vibration modes for bars and cylinders.

Sonelastic®Systems

SA-AG Adjustable support for large specimens

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4. Configurations, parts, accessories and optional items

SA-AG Support consist of two supporting blocks linked by a threaded rod, allowing practical

adjustment. It also has an extension rod to expand the maximum distance between the

supporting blocks.

Parts:

[01] –SA-AG Support;

[02] –Acoustic Sensor CA-DP;

[03] –Sturdy Tripod.

Accessories:

[04] –Medium Manual Impulse Device;

[05] –Extension rod (01 UNIT).

Optional items:

[05] –Extension rod.

Sonelastic®Systems

SA-AG Adjustable support for large specimens

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5. Parts identification

SA-AG Support

01- Threaded rod;

02- Fastening nut of the supporting

block;

03- Supporting block;

04- Supporting frieze;

05- Damper foot;

06- Extension rod.

Sturdy Tripod

01- Frame;

02- Articulated tripod;

03- Handle for securing the tube;

04- Pillar;

05- Handle for the tube articulation;

06- Acoustic sensor clip;

07- Inner tube;

08- Handle for the inner tube articulation;

09- Outer tube;

10- Handle for the outer tube articulation;

11- Cable’s organizer.

Sonelastic®Systems

SA-AG Adjustable support for large specimens

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CA-PD Acoustic Sensor

01-CA-DP Acoustic Sensor;

02- P2 plug (3.5 mm);

03- Flexible cable;

04- Cable gland;

05- Acoustic sensor frame;

06- Vertical mounting base*;

07- Height-adjusting disc**.

* The Vertical mounting base allows positioning the acoustic sensor on the vertical, directly below the specimen,

for measurements under the manual configuration.

** The height-adjusting disc should be used to balance CA-DP Acoustic Sensor and or IED Impulse device

heights, when testing lightweight specimens.

6. Specifications

Maximum dimensions for rectangular specimens (L x W x T) ....... 5,300 x 200 x 200 mm

Minimum dimensions for rectangular specimens (L x W x T) ....... 120 x 20 x 20 mm

Maximum dimensions for cylindrical specimens (L x D) ............... 5,300 x 200 mm

Minimum dimensions for cylindrical specimens (L x D) ............... 120 x 30 mm

Maximum dimensions for the Standard Support (L x W x T)......... 1,000 x 250 x 57 mm

Maximum dimensions for the extended support (L x W x T) ......... 3,000 x 250 x 57 mm

Maximum weight capacity........................................................ 200 kg

Standard Support weight, without a specimen............................ 2.8 kg

Extended support weight, without a specimen............................ 5.2 Kg

Working temperature range .................................................... 10 - 40°C (50 - 104 °F)

Sonelastic®Systems

SA-AG Adjustable support for large specimens

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7. Specimens

7.1 Recommended aspect ratios

Minimum aspect ratios must be observed to avoid coupling between specimen’s vibration

modes. In addition, aspect ratio determines the pattern of frequency spectrum of the acoustic

response. We advise users to standardize the aspect ratio in order to facilitate the frequencies

identification. The table below presents the recommended aspect ratio for bars and cylinders.

Geometry

Recommended proportions

Cylinder

𝐿

𝐷≥ 2

The ratio between length (L) and diameter (D) must be greater than

or equal to 2.

Square section bar

𝐿

𝐴≥ 3

The ratio between length (L) and edge (A) must be greater than or

equal to 3.

Rectangular section bar

𝐿

𝑊 4

The ratio between length (L) and width (W) must be greater than or

equal to 4.

𝑊

𝑇≤ 8

The ratio between width (W) and thickness (T) must be less than or

equal to 8.

Important observations for preparing and finishing the specimens:

- The recommended dimension tolerance is 2%;

- Faces should be flat and parallel;

- Corners should not be rounded.

Sonelastic®Systems

SA-AG Adjustable support for large specimens

Page 10 of 19

7.2 Placing the specimen

The specimen should be symmetrically supported and placed over the supporting blocks, with

these resting at a distance of 0.224 L from the specimen ends (L is the length of the

specimen). For instance, if a specimen’s length (L) is 1,000 mm, the supporting blocks should

be positioned at a distance of 224 mm from each end. The positions of 0.224 L correspond to

the nodal lines of the flexural vibration mode.

Rectangular bar

Cylinder

The corresponding distance calculation of 0.224 L is automatically generated and informed by

Sonelastic® Software. Markings on the specimen are generally done by using a pencil and a

ruler or caliper ruler.

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