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The work presented here experimentally analyzes the compaction behavior of a thin graphite facing gasket material utilizing a new patented lateral displacement fixture. Two constitutive relationships are presented to describe the measured material characteristics, using this new fixture system. The first approach is a more conventional method of taking the load-deformation curve of the material to analyze the stress-strain relationship. The second approach develops the stress-strain relationship using a soils model. The soils model relates the true axial stress to the volumetric strain. The constitutive relationships account for thickness, shape, and surface friction condition variations of the material. To study these variabilities, three thicknesses, two diameters, and two surface friction conditions were considered.

The intent of this paper will be to address the level of performance and cost of the various complex instruction set computers (CISC-80X86) versus the reduced instruction set computers (RISC). The original concept of reduced instruction set computers will be explained. The above information will be contrasted with how the second generation system functions. Once the operations are established, a discussion of operating performance as related to several types of benchmarks will be cited. A typical FEA model will be used as the final benchmark to determine realistic performance versus speed (wall clock time). The final comparison will be of cost.

A major concern in head gasket reliability of an industrial diesel engine is flange cracking. This paper will discuss head gasket flange cracking and the head gasket joint environment as they relate to an industrial diesel engine head gasket joint. The paper will discuss metallographic and finite element analysis of head gasket field failures. The metallographic analysis will discuss the evaluation of production, assembled, laboratory tested, and field tested gaskets. The above will give head gasket designers and engine manufacturers insight into the industrial head gasket joint environment. The metallographic work will explain the method of creating micro sections as well as micro section measurements to aid in the understanding of the head gasket loading.