Laminates hygrothermal analysis

Laminate hygrothermal analysis predicts, based on the CLT, the hygrothermal expansion of a laminate, i.e. the thermal expansion corresponding to the unit temperature change and the moisture expansion corresponding to the reference moisture content change. For unsymmetric laminates, two sets of expansion coefficients are typically derived one for a laminate which is free to curve, another for a laminate with suppressed curvature. The features described above for a laminate stiffness analysis also apply to the hygrothermal analysis. [Pg.381]

Crossman, F. W and Flaggs, D. L., Viscoelastic analysis Hygrothermally Altered Laminate Stresses and Dimensions, LMSC Report LMSC-D633086, 1978,... [Pg.426]

Flaggs, D. L. and Crossman, F. W., Analysis of viscoelastic response of composite laminates during hygrothermal exposure, J. of Composite Materials 15 21-40, 1981. [Pg.427]

Collings T, Copley S (1983) On the accelerated ageing of CFRP. Composites 14(3) 180-188 Collings T, Stone D (1985) Hygrothermal effects in CFC laminates damaging effects of temperature, moisture and thermal spiking. Compos Struct 3(3-4) 341-378 Davies P, Choqueuse D, Mazeas F (1998) Composites underwater. In Reifsnider KL, Dillard DA, Cardon AH (eds) Progress in durability analysis of composite systems. Balkema, Rotterdam, pp 19-24... [Pg.64]

Crossman FW, Flaggs DL (1978) Viscoelastic analysis of hygrothermal altered laminate stresses and dimensions, Final report funded in part by Air Force Office of Scientific Research under contract F49620-77-C-0122 and in part by Lockhead Independent Research Program Crossman FW, Flaggs DL (1979) Dimensional Stability of Composite Laminates During Environmental Exposure. SAMPE Journal 15 15-20... [Pg.120]

Crossman FW, Warren WJ (1985) The infiuence of environment on matrix dominated composite fracture. Final report N60921-81-C-0157, Dec 1985 Crossman FW, Mauri RE, Warren WJ (1978) Moisture altered viscoelastic response of graphite/ epoxy composite. In Vinson JR (ed) Advanced Composite Materials - Environmental Effects, ASTM STP 658. American Society for Testing and Materials, Philadelpia, PA, pp 205-220 Ferry JD (1980) Viscoelastic Properties of Polymers. Wiley, New York Flaggs DL, Crossman FW (1981) Analysis of the Viscoelastic Response of Composite Laminates During Hygrothermal Exposure. Journal of Composite Materials 15(l) 21-40 Harper BD (1983) On the Effects of Post Cure Cool Down and Environmental Conditioning on Residual Stresses in Composite Laminates. Texas A M University Report MM-4665-83-11, Aug 1983... [Pg.120]

Norwood LS, Marchant A (1981) Recent developments in polyester matrices and reinforcements for marine applications, in particular in polyester/kevlar composites. In Marshall IH (ed) Composite structures. Applied Science Publishers, New York, pp 158-181 O Brien TK, Raju IS, Garber DP (1986) Residual thermal and moisture influences on the strain-energy release rate analysis of edge delamination. J Compos Technol Res 8 37 7 Ogi K, Takao Y (1998) Effect of moisture on stress-strain response and damage evolution in quasi-isotropic laminates. J Jpn Soc Compos Mater 24(l) 20-29 Ogi K, Kim HS, Maruyama T, Takao Y (1999) The influence of hygrothermal conditions on the damage processes in quasi-isotropic carbon/epoxy laminates. Compos Sci Technol 59 (16) 2375-2382... [Pg.143]

Hygrothermal stresses, induced in the laminate when it absorbs moisture, should also be considered. These are generally factored in by most computer analysis programs. [Pg.298]

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