Degradation in Strength of Laminated Composites Subjected to Intense Heating and Mechanical Loading

Griffis, C. A.; Nemes, J. A.; Stonesifer, F. R.; Chang, Chia‐Jung

doi:10.1177/002199838602000301

Cited by 110 publications

(51 citation statements)

References 4 publications

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“…Boundary conditions normally specified include those to account for convective and radiation losses/Considering losses from the z face, / 3 (.x, y, f) takes the following form: Table 1 Comparison of stopping power and particle range at two energy levels (4) where h is the convection coefficient, T r the recovery temperature, a the Stefan-Boltzmann constant, e the emissivity, and T 0 the ambient temperature.…”

Section: Slow Energy Depositionmentioning

confidence: 99%

Structural response of materials due to in-depth heating

Nemes

Chang

1987

Journal of Thermophysics and Heat Transfer

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The effect of uniform through-thickness energy deposition on the thermal-mechanical response of several structural materials is evaluated. Expressions used for determining temperature distributions under moderate deposition rates are presented. Temperature histories of aluminum, titanium, and graphite-epoxy panels subject to electron beam irradiation are compared with analytical results to assess the validity of the methods used. Dynamic material response under extreme deposition rates are developed for instantaneous and finite pulse deposition. Expressions for determining the regime of dominant thermal or dynamic response are given as a function of total energy and energy deposition rate.

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Section: Slow Energy Depositionmentioning

confidence: 99%

Structural response of materials due to in-depth heating

Nemes

Chang

1987

Journal of Thermophysics and Heat Transfer

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“…These thermophysical property models were later used by Griffis et al [2], Fanucci [3], and Bisby et al [4] amongst others. An extension from purely temperature-to also time-dependent thermophysical property models was proposed by Lattimer and Ouellette [5].…”

Section: Introductionmentioning

confidence: 99%

“…The change in E-modulus was described by temperature-dependent functions, based on experimental data obtained from dynamic mechanical analysis (DMA) by Griffis et al [2] and Dao and Asaro [12]. Another temperature-dependent model proposed by Gibson et al.…”

Section: Introductionmentioning

confidence: 99%

Time Dependence of Material Properties of FRP Composites in Fire

Bai

Keller

2009

Journal of Composite Materials

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Temperature dependence of physical and mechanical properties is considered in most thermal and mechanical response models for composite materials. Based on thermogravimetry analysis, differential scanning calorimetry, and dynamic mechanical analysis conducted at different heating rates, it is demonstrated that thermophysical and thermomechanical properties are not univariate functions of temperature, but also functions of time. Temperature-and time-dependent models for physical and mechanical properties at elevated and high temperatures are proposed, which show good accordance with experimental results. Based on a finite difference method, complex realistic thermal loading programs such as the ISO fire curve can be taken into account.

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“…Analytical methods investigating the effects of intense thermal heating combined with mechanical loading have been investigated by Griffis, et aI. [1] and Chen, et al [2]. Schubbe and Mall [3] and Castelli, et al [4] have experimentally investigated both in-phase (maximum temperature at maximum load) and out-of-phase (maximum temperature at minimum load) thermal-mechanical cycling on composites.…”

Section: Introductionmentioning

confidence: 99%