Compressive response

The chapter on equation-of-state properties provides the basic approaches used for describing the high-pressure shock-compression response of materials. These theories provide the basis for separating the elastic compression components from the thermal contributions in shock compression, which is necessary for comparing shock-compression results with those obtained from other techniques such as isothermal compression. A basic understanding of the simple theories of shock compression, such as the Mie-Gruneisen equation of state, are prerequisite to understanding more advanced theories that will be discussed in subsequent volumes. 

From the early work of Taylor [63T01] connecting dislocation behavior to observed viscoplastic shock-compression response, numerous studies have attempted to relate conventional dislocation dynamics models to experimental observations. Theory and observations consistently require unusually large numbers of mobile dislocations. Although qualitatively descriptive, progress to date on dislocation models has not proven to provide quantitative descriptions to the observations in metals. 

Figure 15. Temperature-dependent compressive response of [0] composite laminates. (Reproduced from reference 13.)...

Farley. G.L., Smith. B.T. and Maiden. J. (1992). Compression response of thick layer composite laminates with through-the-thickness reinforcement. J. Reinforced Plast. Composites 11, 787-810. 

Micromechanics theories for closed cell foams are less well advanced for than those for open cell foams. The elastic moduli of the closed-cell Kelvin foam were obtained by Finite Element Analysis (FEA) by Kraynik and co-workers (a. 14), and the high strain compressive response predicted by Mills and Zhu (a. 15). The Young s moduli predicted by the Kraynik model, which assumes the cell faces remain flat, lie above the experimental data (Figure 7), while those predicted by the Mills and Zhu model, which assumes that inplane compressive stresses will buckle faces, lie beneath the data. The experimental data is closer to the Mills and Zhu model at low densities, but closer to the Kraynik theory at high foam densities. 

TIME DEPENDENCE OF THE COMPRESSIVE RESPONSE OF POLYPROPYLENE BEAD FOAM Mills N J... 

Fig. 3.10. Autoradiograph of a sequencing gel prepared using the Maat and Smith procedure. The sequence shown is that derived from a 440 nucleotide-long fragment from a Hinfl digest of a 5 -end labelled HirtdUl fragment of adenovirus type 5 DNA. Samples from each base-specific reaction mixture were loaded every 2 hours (runs I, II, III, and IV). Electrophoresis was carried out at a constant current of 30 mA. Nucleotide sequence analysis of the complementary DNA strand revealed one mistake in the sequence as written. At position 2870 (in run III) two C s should be read instead of one. The zone of compression responsible for this error is not very apparent and emphasizes the importance of sequencing both DNA strands.

The laminated spring of the last section are often compressed in a direction perpendicular to the layers. The top and bottom surfaces of the rubber layers cannot expand sideways because they are bonded to steel plates. The effect of this restraint on the compressive response depends on the layer shape factor S (Fig. 4.3) defined as... 

Soutis C, Spearing SM. Compressive response of notched woven fabric face-sheet honeycomb sandwich panels. J Polym Rubbers Compos 2002 31(9) 392—7. 

Quek SC, Waas A, Shahwan KW, Agaram V. Compressive response and failure of braided textile composites Part 2-computations. Int J Non-linear Mech 2004 39(4) 649-63. 

Huang H, Waas AM. Compressive response of Z-pinned woven glass fiber textile composite laminates modeling and computations. Compos Sci Technol 2009 69 2338-44. 

Figure 7.23 Stress-strain tensile and compressive response tends to be similar...

J J Lesko, J S Elmore, S W Case, R E Swain, K L Reifsnider and D A Dillard, A global and local investigation of compressive strength to determine the influence of the fiber/matrix interphase . Compression Response of Composite Structures, ASTM STP1185,228-240, Philadelphia, American Society for Testing and Materials, 1994. 

Fizman, S.M. Duran, L. (1992). Effect of fruit pulps and sucrose on the compression response of different polysaccharides gel systems. Carbohydrate Polymers, Vol.l7, No.l, pp.11-17, ISSN 01448617... 

Song, B., Chen, W., and Frew, D.J. (2004) Dynamic compressive response and failure behavior of an epoxy syntactic foam. Journal of Composite Materials, 38, 915-936. 

Vecchio FJ, Collins MP (1993) Compression response of ancked reinforced concrete. ASCE J Struct Eng 83 219-231... 

Luo H, Chen W, Rajendran A M (2006) Dynamic compressive response of damaged and interlocked SiC-N ceramics. J Am Ceram Soc 89 266-273... 

J.-J. Pesce and G. B. McKenna, Prediction of the Sub-Yield Extension and Compression Responses of Glassy Polycarbonate from Torsional Measurements J. Rheol. 41, 929-942(1997). 

Williams CD, Grove SM, Summerscales J. The compression response of fibre-reinforced plastic plates during manufacture by the resin infusion under flexible tooling method. Composites Part A Applied Science and Manufacturing, 1998 29(1-2) 111-114. DOI http //dx.doi.org/10.1016/S1359-835X(97)00038-9. 

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