Durability of Composite Materials under Severe Temperature Conditions: Influence of Moisture Content and Prediction of Thermo-Mechanical Properties During a Fire

Abstract

The main objective of the present study was to develop a fire thermal model able to predict the evolution of the temperature and decomposition gradient across a laminated composite structure when exposed to fire. The thermal response of composite laminate made of organic polymer matrix was investigated under severe temperature conditions as samples were exposed to high temperatures up to 750 °C. The highlight is that a behavior law for water is included in our thermo-mechanical model to estimate effects due to a moisture content field on the thermal response of composite laminates. In particular, porosity and gas pressure are strongly influenced by the presence of water in the material and modify the thermal behavior accordingly. This enabled us to propose a new approach that can be used for the prediction of hygro-thermo-chemico-mechanical post-combustion properties in a very large number of material and fire scenarios.

Study of thermomechanical coupling in carbon fibers woven‐ply reinforced thermoplastic laminates: Tensile behavior under radiant heat flux

“…The study of the thermomechanical behavior of mechanical materials under one‐side heat flux usually deals with tensile creep loadings. [ 24 ] Before considering such loadings, monotonic tensile tests to failure were conducted under different heat fluxes (40 and 60 kW/m 2 ) to determine the ultimate strength and to study the chronology of damage mechanisms in each configuration. Based on previous temperature measurements (Figure 7), at the time of the mechanical loading, temperatures are: On the exposed surface: 401°C under 40 kW/m 2 and 582°C under 60 kW/m 2 . On the back surface: 315°C under 40 kW/m 2 and 350°C under 60 kW/m 2 . …”

“…Most references dealing with the fire behavior of PMCs are related to thermosetting (TS) matrix composite materials, [12][13][14][15][16][17][18][19][20][21][22][23][24][25] which have been used for almost 40 years in these sectors (carbon/epoxy, carbon/phenolic, glass/ vinylester, or glass/polyester). From the end of the 1990s, the use of thermoplastic (TP) matrix composite materials has been developing in many industries.…”

Why Biopolymer Packaging Materials are Better

“…Potatoes, tea leaves, coffee, sugar, and dried cereals are used in textile package synthesis. However, plastics and composite material bags are fast to overtake the use of cloth bags within the past few decades since its enhanced barrier and strengthened property containing packaging material is composite [13]. Typically, packaging containing composite materials are used by the beverage and dairy industries for soft drinks, fruit juices, and dairy products.…”

“…Composites have been applied to all the materials to enhance their properties and to reduce their negative points. The development of technology [12], [13], population growth and urbanization has led packaging technologies into an alternativeplastics.…”

Towards the Prediction of Sandwich Composites Durability in Severe Condition of Temperature: A New Numerical Model Describing the Influence of Material Water Content during a Fire Scenario

“…Carbon fiber reinforced polymer bonded to aramid or aluminum honeycomb cores are usually preferred in the aeronautical and aerospace industries, while glass fiber reinforced polymer combined to light balsa or polymer foam are more frequently used in the marine and naval industry. Nevertheless, in the context of composites subjected to severe environments [11,12,20,21], the understanding of thermal and mechanical response of sandwich materials is necessary for better introducing and optimizing them in structural solutions.…”