Compressive failure mechanisms in Composite Laminates with Dropped Plies

Add to your list(s) Download to your calendar using vCal

• Dr Stuart Lemanski, CUED
• Friday 04 May 2012, 14:00-15:00
• Oatley Seminar Room, Department of Engineering.

If you have a question about this talk, please contact Ms Helen Gardner.

Composite structures exhibit many different failure mechanisms, but attempts to model composite failure frequently make a prioriassumptions about the mechanism by which failure will occur. Compressive tests were conducted at Bristol University on composite specimen manufactured with dropped plies which created wout-of-plane waviness defects. Significantly different failure mechanisms were observed for each case, so detailed finite element models of these experiments were developed which included competing failure mechanisms. The model predictions correlate well with experimental results – both qualitatively (location of failure and shape of failed specimen) and quantitatively (failure load). The models are used to identify the progression of failure during the compressive tests, determine the critical failure mechanism for each configuration, and investigate the effect of cohesive parameters upon specimen strength. This modelling approach which includes multiple competing failure mechanisms can be applied to predict failure in situations where the failure mechanism is not known in advance.

This talk is part of the Engineering - Mechanics and Materials Seminar Series series.

This talk is included in these lists:

• All Talks (aka the CURE list)
• Cambridge University Engineering Department Talks
• Cambridge talks
• Centre for Smart Infrastructure & Construction
• Computational Continuum Mechanics Group Seminars
• Engineering - Mechanics and Materials Seminar Series
• Engineering - Mechanics, Materials and Design (Div C) - talks and events
• Featured lists
• Interested Talks
• Lennard-Jones Centre external
• Oatley Seminar Room, Department of Engineering
• School of Technology
• Trust & Technology Initiative - interesting events
• bld31

Note that ex-directory lists are not shown.