TY - JOUR

T1 - Experimental and numerical analysis of PMMA impact fracture

AU - Kazarinov, N. A.

AU - Bratov, V. A.

AU - Morozov, N. F.

AU - Petrov, Y. V.

AU - Balandin, V. V.

AU - Iqbal, M. A.

AU - Gupta, N. K.

PY - 2020/9

Y1 - 2020/9

N2 - The work presents experimental and numerical results on dynamic fracture of PMMA plates subjected to impact loading. The experimental tests were conducted using steel cylinder-shaped projectile accelerated using a gas gun. In order to evaluate performance of the tested specimens, residual impactor velocity was assessed using high-speed photography setup. Square-shaped PMMA specimens with three thicknesses were investigated using various projectile velocities. For all the three specimen types the ballistic limits were experimentally obtained. The conducted experiments were numerically simulated using finite element method with explicit time integration scheme and incubation time fracture model for the material failure prediction. Experiments with all three specimen configurations were successfully simulated using one parameter – incubation time, which was evaluated from existing experimental data on the dynamic fracture of PMMA. In addition to the simulations of the real experiments estimates on performance of a sample with a virtual geometry were made using the developed numerical approach.

AB - The work presents experimental and numerical results on dynamic fracture of PMMA plates subjected to impact loading. The experimental tests were conducted using steel cylinder-shaped projectile accelerated using a gas gun. In order to evaluate performance of the tested specimens, residual impactor velocity was assessed using high-speed photography setup. Square-shaped PMMA specimens with three thicknesses were investigated using various projectile velocities. For all the three specimen types the ballistic limits were experimentally obtained. The conducted experiments were numerically simulated using finite element method with explicit time integration scheme and incubation time fracture model for the material failure prediction. Experiments with all three specimen configurations were successfully simulated using one parameter – incubation time, which was evaluated from existing experimental data on the dynamic fracture of PMMA. In addition to the simulations of the real experiments estimates on performance of a sample with a virtual geometry were made using the developed numerical approach.

KW - FEM

KW - Impact

KW - Incubation time

KW - Penetration

KW - PMMA

KW - Threshold velocity

KW - BEHAVIOR

KW - STRENGTH

KW - SPH

KW - METHODOLOGICAL ASPECTS

KW - DYNAMIC FRACTURE

KW - PROPAGATION

UR - http://www.scopus.com/inward/record.url?scp=85084416667&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/1301a57e-922d-3ebd-9fab-b797d127f275/

U2 - 10.1016/j.ijimpeng.2020.103597

DO - 10.1016/j.ijimpeng.2020.103597

M3 - Article

AN - SCOPUS:85084416667

VL - 143

JO - International Journal of Impact Engineering

JF - International Journal of Impact Engineering

SN - 0734-743X

M1 - 103597

ER -