OGIHARA, S.
Department of Mechanical Engineering
Tokyo University of Science
Japan
REIFSNIDER, Kenneth
University of Connecticut - Unit 5233
Storrs - Connecticut - USA
SUN, C.T.
Purdue University
West Lafayette - USA
TAMUZS, Vitauts
Institute of Polymer Mechanics, 23 Aizkraukles iela,
Riga - Latvia
Abstract
Modern technology has introduced advanced composite materials to applications that can involve highly nonlinear response. In some cases, this response is induced by severe conditions such as elevated temperature or moisture, or other environments. These applications are widely varied and essential to various sectors of society. Composites are being used in structures that may be subject to fire, for example, and must respond to such events in a controlled fashion. Electrical equipment (including some wireless technology) is now being designed with composites that are operating at temperatures significantly above the Tg of the polymer matrix involved. A variety of medical devices use composites that are designed to sustain large deformations, as orthopedic devices, or as replacements for biological tissue or membranes. And polymer-based fuel cells are composite material systems that involve ionomeric composites that respond in a highly nonlinear manner that is strongly coupled to temperature and hydration.
Mechanical modeling of this nonlinear response can done correctly only if robust and precise constitutive behavior is known, understood, and represented by constitutive equations that are complete and compatible with typical commercial discrete element codes such as ANSYS and ABAQUS. These constitutive relations must be developed for composite laminates with specific microstructures (i.e., lamination, interfaces, anisotropy, layer thickness, etc.). And they must depend on the nano-structure of the constituent materials, at least to the extent that correct choices are made regarding the selection of the basic nature of the constitutive representations. The present MiniSymposia will address these and related issues for composite laminates, for all material systems of interest to applications. Experimental and analytical representations of lamina and laminate behavior, and of other composite systems are of interest, especially as they related to strength and life.
NONLINEAR BEHAVIOR IN COMPOSITE LAMINATES
RELIABILITY AND DURABILITY OF STRUCTURALS COMPOSITE MATERIALS
DELAMINATION FRACTURE IN HETEROGENEOUS MATERIALS AND STRUCTURES
STRESS AND FAILURE IN JOINTS