Experimental Study of Dynamic Material Properties of Clay Brick and Mortar at Different Strain Rates

A Discrete Macro-Model Using Homogenization With Strain-Rate Dependency for the Out-of-Plane Study of Masonry Panels Subjected to Impact Loading

“…A useful and practical way to numerically represent the material properties change is to define dynamic increase factors (DIFs). The use of DIF laws is found suitable to study masonry structures subjected to fast loads application [24,25]. In this way, a homogenized model that may account the latter is relevant.…”

“…Existing research proves that the use of static strength properties can lead to unreliable results for the masonry behaviour under fast dynamic actions, see [13,24]. Static strength material properties may exhibit an enhancement according to the strain rate level of the applied load.…”

“…The static material properties required are gathered in Table 1 and the ratedependency issue is addressed. Hao and Tarasov [24] studied the experimental dynamic behaviour of a series of brick and mortar specimens under uniaxial compressive tests through a tri-axial static-dynamic apparatus. The analytical expressions required to describe the value of the DIFs derive from the latter research.…”

“…For the present study, the information proposed by [24] is used to obtain rate dependent homogenized relations and so, the former strategy is adopted. The bending and torsional moment curves may be integrated along the thickness for each strain rate level.…”

Shock compression of simulated adobe

“…It is also necessary to compare to other materials which are perhaps simpler in constitution, as there is a lack of data on comparable adobe type materials in the literature at the pressures of interest. There is a reasonable amount of data taken at lower strain rates [3,4,5,6], however this is not directly comparable.…”