Forensic Engineering and Failure Analysis
Failure Analysis Engineering - Application of All
Engineering Disciplines in the Investigation
of Distress and Failure in Engineered Systems.
Forensic Engineering - Specialized Services as
Consultants to Members of the Legal Profession
and as Expert Witnesses in Courts of Law,
Arbitration and Administrative Proceedings.
CATASTROPHIC FAILURE DURING CONSTRUCTION,
POST TENSIONED BRIDGE ANCHORAGE; Before, After, and FEA Simulation of failure mechanism.
Vibration Equipment, Stainless Steel Weldmens. Failure Mechanism - Fatigue Cracks at Fillet Welds
SPECIAL STRUCTURES: LARGE SCALE WATER FEATURE
The design of some structures involve several engineering disciplines. When these structures fail, the failure mechanism is usually also multi-disciplinary. In this case, a large scale water feature was built using large Limestone blocks interlocked horizontally and attached to a concrete substrate. The wall was 350 feet long, consisting of a straight and curved section. The height increased from 6 to 16 feet tall. Environmental conditions were severe, subject to wide seasonal variation in temperature and moisture.
The curved water wall was designed and constructed without espansion joints. Following the first failure event, the wall was rebuilt without expansion joints.
After the second failure, the owners retained GES Tech Group, Inc. to determine the actual cause of the repeated failures. Clear evidence of seasonal expansion and contraction due thermal and moisture effects was present in the wall and ultimately was identified as the cause. Extensive non-linear FEA formulations confirmed the failure mechanism.
Water Wall, Summer 2009 (no failures following second rebuild with joints)
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