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The experience of using space apparatus type Shuttle testifies the unreliability of an applied design of a thermostable cover for flying apparatus made of separate tiles. To prevent burning through corps at branch and loss of separate heat-resistant termostable tiles when descending to earth from space, the technological idea of a continuous thermostable heat-resistant composite cover of flying apparatus for protection against dangerous effects of flame when landing on earth was introduced. The study also offers the idea of transformation of separate thermostable tiles in a continuous covering.

This study investigates the values of teenagers and their parents, and the influence parents have on the values of their children. Values are categorized into terminal and instrumental values. Different from previous works on values, the measurement of both these values is based on al‐Ghazali’s works in line with Islamic ethics. In addition, this study also determines the “oughtness” of both categories of values. The results reveal that overall, both teenagers and parents had good instrumental and terminal values. However, there were differences in the terminal values of teenagers and parents across ethnic groups. The analysis also shows that teenagers shared similar terminal and instrumental values as their parents, implying that parents had a significant influence on the development of their children’s values. Thus parents play an important role in transmitting good values to their children in resisting negative influences.

The purpose of this paper is to present, the global behaviour of sandwich structures comprising cellular cores is predicted by finite element (FE) analysis. Two modelling approaches are investigated, providing different levels of accuracy; in both approaches, the sandwich structure is idealised as a layered stack with the skin modelled using shell elements; while the core is either modelled with fine detail using beam micro-elements representing the cell struts, or is modelled by three-dimensional solid elements after an appropriate core homogenisation.

The applied homogenisation methodology, as well as the all important modelling issues are presented in detail. Experimental tests performed using a mass-drop testing machine are used for the successful validation of the simulation models.

It was concluded that the core microscale models having detailed FE modelling of the core unit cells geometry with fine scale beam elements are suitable for the analysis of the core failure modes and the prediction of the basic core stiffness and strength properties. It was demonstrated that the homogenised core model provides significant advantages with respect to computing time and cost, although they require additional calculations in order to define the homogenised stress-strain curves.

Special microscale material tests are required for the determination of appropriate materials parameters of the core models, as steel selective laser melting (SLM) microstrut properties differ from the constitutive steel material ones, due to the core manufacturing SLM technique. Stress interactions were not taken into account in the homogenisation, as the applied core material model supports the introduction of independent stress-strain curves; however, the predicted load deflection results appeared to be very close to those obtained from the detailed core micromodels.

The paper is original. The dynamic behaviour of conventional sandwich structures comprising conventional honeycomb type cores has been extensively studied, using simple mass-spring models, energy based models, as well as FE models. However, the response of sandwich panels with innovative SLM cellular cores has been limited. In the present paper, novel modelling approaches for the simulation of the structural response of sandwich panels having innovative open lattice cellular cores produced by SLM are investigated.

The purpose of this paper is to present an applied method to design the low-speed contact between a mass and surface of a beam using an analytical solution based on the first-order shear deformation beam theory. Also, a simulation of impact process is carried out by ABAQUS finite element (FE) code.

In theoretical formulation, first strains and stresses are obtained, then kinetic and potential energies are written, and using a combination of Ritz and Lagrange methods, a set of system of motion equations in the form of mass, stiffness and force matrices is obtained. Finally, the motion equations are solved using Runge–Kutta fourth order method.

The von Mises stress contours at the impact point and contact force from the ABAQUS simulation are illustrated and it is revealed that the theoretical solution is in good agreement with the FE code. The effect of changes in projectile speed, projectile diameter and projectile mass on the results is carefully examined with particular attention to evaluate histories of the impact force and beam recess. One of the important results is that changes in projectile speed have a greater effect on the results than changes in projectile diameter, and also changes in projectile mass have the least effect.

This paper presents a combination of methods of energy, Ritz and Lagrange and also FE code to simulate the problem of sandwich beams under low velocity impact.

Due to the gender norms in Indonesia, married women are vulnerable to domestic violence perpetrated by their husband. With a paucity of studies on this issue, the purpose of this paper is to explore the vulnerability to domestic physical violence among married women in Indonesia by measuring the acceptance of being beaten by their husband and factors associated with married women’s approvals were also identified.

Secondary data analysis of three rounds of Indonesia Demographic and Health Survey in 2002/2003, 2007 and 2012 was performed. Data were analyzed descriptively to reveal the trend of women’s acceptance and binary logistic regression was applied to identify determinants.

Women’s acceptance of wife beating in some circumstances experienced an increase during 2002–2012. Determinants varied by type of beating justification. Overall, determinants fell into three groups of women’s, husband’s and household’s characteristics.

This study helps to identify determinants of women’s vulnerability to domestic physical violence and suggests some substantial approaches to address this pressing issue.

The fiber orientation is considered one of the important parameters that have an effect on the characteristics of composites. This paper aims to investigate the effect of fiber orientation on the abrasive wear of the glass-epoxy (G-E) composites with different silicon carbide (SiC) filler weights (Wt.%).

The wear rate of glass fiber reinforced with angle-ply 0º, ±45º and 90º is discussed. The G-E composites with different weights of SiC filler at angle ±45º are considered. Hand lay-up technique was adopted for specimen preparation. The influence of effective parameters such as filler Wt. %, normal load, abrasive size and abrading distance on the wear rate was presented and discussed.

Experimental tests including pin on disk, micro-hardness and scanning electron microscope were carried out to investigate the composite characteristics.

The experimental results showed that the resistance wear was superior in case of ±45º fiber orientations. A validation of the experimental results using Taguchi approach to verify the optimal wear rate parameters was presented.