  Shock-induced metamorphism in meteorites informs us about the collisional
environment and history of our solar system. Recently the importance of
material strength in impact heating was reported from head-on impact
simulations. Here, we perform three-dimensional oblique impact simulations, and
confirm the additional heating due to material strength for oblique impacts.
Despite a large difference in the peak pressure at the impact point at a given
impact velocity, we find that the heated mass for an oblique impact is nearly
the same as that for a head-on impact. Thus, our results differ from the
previous finding that the heated mass decreases as the impact becomes more
oblique, and show that the additional shear heating is more effective for
oblique impacts than for head-on impacts. This also indicates that material
ejected during oblique impact tends to experience lower shock pressures but
higher temperatures.
