Interlaminar stress recovery near free edge using a layerwise element with enhanced strains

Conference · Tue Jul 01 00:00:00 EDT 1997

OSTI ID:485091

Moorthy, D; Mitchell, J A; Reddy, J N ^[1]

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1. Texas A and M Univ., College Station, TX (United States). Dept. of Mechanical Engineering

In the analysis of composite laminates, when the primary concern is the global response, one may choose to model the laminate with layers of different mechanical properties as an effective layer with equivalent mechanical characteristics. A layerwise finite element with enhanced strains is developed for the study of interlaminar stresses near free edge of a laminate in bending. Interlaminar boundary of interest is modeled as an adhesive contact zone between the two halves of the laminate separated at the interface. Interlaminar stresses are then recovered from the contact load that satisfies the equilibrium of the laminate. The stresses recovered thus are compared with other stress recovery procedures.

• OSTI ID: 485091
• Report Number(s): CONF-970146-; ISBN 1-890277-03-7; TRN: IM9727%%259
• Resource Relation: Conference: Energy week `97 conference & exhibition, Houston, TX (United States), 28-30 Jan 1997; Other Information: PBD: 1997; Related Information: Is Part Of 8. annual international energy week conference and exhibition: Conference papers. Book 4: Energy engineering 1; PB: 508 p.
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
COMPOSITE MATERIALS
STRESS ANALYSIS
LAYERS
STRESS RELAXATION
MATHEMATICAL MODELS
INTERFACES