Concrete Fragility for Aircraft Impact

Concrete Fragility for Aircraft Impact

Challenge: A reinforced concrete structure required evaluation for the effects of an aircraft impact. The large expected deformations and highly non-linear behavior of concrete necessitated the development of a detailed finite element model of the structure in which...
Motorized LAPD Target Lift System

Motorized LAPD Target Lift System

Challenge: To verify the structural adequacy of a motorized aluminum target lift system to support its self-weight, dynamic, and seismic loads. Special attention was required to account for the dynamic vertical movement of the motorized portion of the target lift...
Blast Related Bathrooms

Blast Related Bathrooms

Challenge: Hopper Engineering was requested to analyze and design a blast-resistant portable, modular building in a refinery setting. Refineries are minimizing risk by designing new buildings to be blast rated for accidental explosions. This not only protects...