Parameter inversion and amendment of underwater acoustic modulus of high-strength PVC foam

Table 1. Summary of test results for static elastic modulus of foam
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Table 1. Summary of test results for static elastic modulus of foam
试样密度/(kg·m⁻³) 压缩模量/MPa 拉伸模量/MPa
VS-1 303.0 635.2 558.9
VS-2 303.9 629.3 627.7
VS-3 297.2 614.3 577.2
VS-4 315.9 704.6 582.0
VS-5 310.2 626.8 593.7

Table 2. Summary of inversion and measured values for material modulus

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Table 2. Summary of inversion and measured values for material modulus

试样	水声模量反演值/MPa	压缩模量值/MPa	拉伸模量值/MPa	水声模量与压缩模量比值	水声模量与拉伸模量比值
VS-1	806.8	635.2	558.9	1.270	1.444
VS-2	801.7	629.3	627.7	1.274	1.277
VS-3	704.5	614.3	577.2	1.147	1.221
VS-4	856.9	704.6	582.0	1.216	1.472
VS-5	813.4	626.8	593.7	1.298	1.370

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Bo HU, Chongjian WU, Qijian HE, Wei XIAO, Leixin LI, Xiang LI. Parameter inversion and amendment of underwater acoustic modulus of high-strength PVC foam[J]. Chinese Journal of Ship Research, 2023, 18(2): 107

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