Strain Measurement Techniques for Composites Coupon Testing

Strain Measurement Techniques for Composites Coupon Testing

Most approaches to strain measurement in Composites Coupon testing use contacting methods involving bonded strain gauges or clip-on extensometers. Recent developments in non-contacting strain measurement mean these systems now offer similar performance to traditional contacting systems, as well as providing significant other benefits such as the ability to provide full field strain maps.

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Whitepapers 12/03/2015 805.76 KB

A Review of Medical Device Quality System Controls for Lab Equipment

A Review of Medical Device Quality System Controls for Lab Equipment

The FDA’s Medical Device 21 CFR 820 Quality System Regulation has multiple parts, including a subpart dedicated solely to equipment and facilities controls.The purpose of this review is to discuss laboratory controls pertaining to materials testing equipment.

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Whitepapers 11/11/2015 400.7 KB

ISO 6892: Metallic Materials for Tensile Testing

ISO 6892: Metallic Materials for Tensile Testing

The new ISO 6892:1-2009 (Metallic Materials – Tensile Testing – Part 1: Method of Test at Room Temperature) is a significant event for anyone performing tensile tests on metallic materials. The new standard replaces both the previous version of ISO 6892 and the widely-used EN 10002-1:2001 standard.

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Whitepapers 04/20/2015 380.15 KB

ISO 6892: Metallic Materials for Tensile Testing

ISO 6892: Metallic Materials for Tensile Testing

The new ISO 6892:1-2009 (Metallic Materials – Tensile Testing – Part 1: Method of Test at Room Temperature) is a significant event for anyone performing tensile tests on metallic materials. The new standard replaces both the previous version of ISO 6892 and the widely-used EN 10002-1:2001 standard.

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Whitepapers 04/20/2015 380.15 KB

System Compliance and ISO 6892-1:2009 Method A

System Compliance and ISO 6892-1:2009 Method A

With the introduction of ISO 6892-1:2009, the principle of maintaining tight tolerances on the specimen strain rate during the
test, to improve consistency of results, became more widely adopted. Previously, methods of this type had been mainly used
within the aerospace industry. The method for maintaining the specimen strain rate in this manner is commonly referred to as
“Method A”. The new ISO 6892-1:2009 standard supersedes both ISO 6892:1998 and EN 10002-1:2001, the testing
procedures from these standards, stress rates with a strain rate limit, remained in what is known as “Method B”.

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Whitepapers 04/13/2015 138.5 KB

Steel Rebar: A Tensile Testing Guide

Steel Rebar: A Tensile Testing Guide

Mechanical testing requirements for rebar can vary, but typically fall into the basic test categories of tensile, bend, compression, and fatigue. This document will focus primarily on the very common, yet sometimes challenging, tensile test.

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Whitepapers 03/31/2015 552 KB

Composites Gripping Guide

Composites Gripping Guide

A guide that provides an overview of the requirements and important issues that arise when gripping composite laminate coupons, as well as to outline multiple gripping solutions.

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Whitepapers 12/02/2014 2.07 MB

Full Field Strain

Full Field Strain

With new and advancing materials being developed every day, research and material testing has to adapt to keep up. For materials research current strain measurement techniques do not offer enough information about how failures occur, and so, engineers are looking for different methods. One such test technique is the use of Digital Image Correlation (DIC) in measuring full field strain over a materials surface.

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Whitepapers 12/02/2014 492.27 KB

Gripping Effects in Composite Fatigue Testing

Gripping Effects in Composite Fatigue Testing

Gripping methods can significantly affect values and consistency of results in mechanical testing of composites. With a growing drive to measure and understand the dynamic behavior of composites, it is sometimes necessary to revisit previous methodologies for specimen gripping.

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Whitepapers 07/31/2014 1012.66 KB

Characterizing Complex Materials with Impact Testing

Characterizing Complex Materials with Impact Testing

During the European Congress on Composite Materials(ECCM16) seminar in Seville, Spain, Andrea Calzolari presented research that was carried out in cooperation with the University of Turin and the LIMA
Corporate Group.

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Whitepapers 07/31/2014 717.75 KB