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Innovative composite structures are increasingly being used in the aircraft industry. A critical point of these new composite parts is the attachment to the surrounding aircraft structure. In cooperation between different EADS Business Units, a new advanced composite load introduction rib is developed to minimize weight and manufacturing costs. The new design of the flap focuses on the load introduction rib and drive fitting including the integrated lugs for the attachment to the flap support structure.

Boeing and Skyhook International entered into an agreement whereby Boeing will design and build two prototypes of the new Skyhook HLV aircraft. This hybrid airship is intended to carry 40 tons of cargo 100 miles. Due to the flexible, non-linear nature of fabric airship envelopes, as well as the complexity of designing a hybrid airship, the internal loads model for this aircraft is being developed in Abaqus and will be solved non-linearly.

Hello everybody,

I am simulating contact problem . Two sutfaces are in contact. One of them is anamytial surface. My slave surface doesn't deforms properly, master surface goes through my slave surface. Please help me with advice, which properties should i put for interaction?  What should be the reason of such mistake.

Best regards

ABAgirl 

Two talks tomorrow:

1. Meso-Origami: Folding and Assembly of Single and Multilayer Graphene Sheets

2. Hierarchical Mechanics of Spider Silk, from Molecules to the Web

Hello everybody,



I want to simulate a tensile test using "damage for ductile metals" and "ductile damage". ABAQUS requires three parameters:

-Equivalent fracture strain at damage initiation (a)

-stress-triaxiality (b)

-strain rate (c)

I have already seen Abaqus analysis user's manual (23.2.2), but there's no example. 



Currently, I defined a 3D solid deformable  and an elastic and plastic behavior. I do not understand how to select a first set of parameters for the "ductile damage".

** MATERIALS