Failure Analysis

Welcome to the Failure Analysis section. The latest articles for this section are displayed below:

Importance of sample dimensions in dynamic mechanical analysis

Ian M. McAninch, Joseph L. Lenhart, John J. La Scala, and Giuseppe R. Palmese
22 October 2015
Both the size of samples and the type of clamp geometry should be considered during testing of epoxy resins to ensure accurate modulus measurements are obtained.

Evaluating the effects of low-velocity impacts in sandwich composites

Taotao Zhang and Ying Yan
12 August 2015
A new 3D numerical simulation approach considers facesheet intralaminar damage, interlaminar delamination, and honeycomb plastic deformation, as well as compression after impact.

Conformal cooling efficiencies in stretch blow molding

Sumit Mukherjee, Reiner Westhoff, Robert Beard, and Ron Puvak
3 August 2015
Simulating and measuring mold temperatures and stress crack performance helps improve quenching and petaloid base performance.

Effect of inorganic pigments on the hygrothermal properties of wood-plastic composites

Changyan Xu
10 July 2015
The addition of iron oxide pigments to wood-plastic composites results in an increase in the flexural strength and moduli they exhibit after hygrothermal aging tests.

Toughness of center-cracked polypropylene films

Arzu Hayirlioglu Topuzlu and Hoang Pham
18 May 2015
A simple tensile test method that uses the strain energy of materials predicts the failure strength of multilayer films.

Improved puncture resistance testing of flexible food packages

Leopoldo Carbajal, Rong Jiao, Randy Kendzierski, Diane Hahm, and Barry Morris
7 April 2015
A high-speed impact test for measuring puncture resistance of multilayer films was developed that shows good correlation with field failures and helps optimize performance for food packaging.

Deformation-induced change to the mechanical properties of polyethylene

Pean-Yue Ben Jar
31 March 2015
A short-term test method to evaluate the performance of polyethylene pipes enables the effect of prior deformation on the tangent modulus to be measured and may prove useful for in-service monitoring.2

Fatigue loading enhances the strength of nylon nanofiber yarns

Ali Akbar Gharehaghaji, Sara Asghari Mooneghi, Hossein Hosseini-Toudeshky, and Giti Torkaman
27 January 2015
The application of tensile fatigue to nylon-66 nanofiber yarns improves the nanofiber alignment and crystallinity of their structure, thereby increasing tensile strength.

Crack-fiber interaction in fiber-reinforced composites

5 January 2015
The matrix crack-fiber bundle interaction in fiber-reinforced composites is investigated analytically and experimentally.

Post-industrial waste nylon for automotive applications

David DuQuesnay, Ying Zhang, and Philip Bates
27 August 2014
Although slightly lower in tensile and fatigue strength, glass-fiber-reinforced waste nylon can be a viable substitute for reinforced prime nylon in cyclically loaded under-hood automotive applications.

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