Sustainable building cladding: Balancing embodied carbon and protection against blast driven fragmentation penetration
持続可能な建物外壁：埋蔵炭素と爆発による破片貫通に対する保護のバランス (AI 翻訳)
Angela Laycock, A. Helliker, R. Critchley, R. Hazael
🤖 gxceed AI 要約
日本語
本研究は、建物外壁材の埋蔵炭素量と爆発による破片貫通耐性のバランスを評価した。様々な材料をガスガンで試験し、V50弾道限界と地球温暖化係数の材料選択チャートを作成。保護性能と埋蔵炭素の間に直接の相関はなく、材料の厚さや面密度が弱い正の相関を示す。結果は、多くの材料が爆発由来のベアリング速度に耐えられないことを示し、保護レベルの理解の重要性を強調。
English
This study evaluates the trade-off between embodied carbon and blast fragmentation penetration resistance in building cladding materials. Using a gas gun, various materials were tested, and a novel material selection chart of Global Warming Potential vs. V50 ballistic limit was produced. Results show no direct correlation between protection level and embodied carbon; thickness and areal density have weak positive correlation. Many materials fail to stop blast-driven ball bearings, highlighting the need to understand actual protection levels.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
日本では、建築物の省エネ・脱炭素基準が強化されており、外壁材の選択に埋蔵炭素の考慮が求められる。本論文は防爆性能も同時に評価することで、安全と環境の両立を目指す設計判断に示唆を与える。
In the global GX context
Globally, embodied carbon in construction is gaining attention as part of lifecycle emissions. This paper provides a data-driven approach to balance carbon reduction with explosive hazard protection, relevant for building codes and sustainable design in urban security contexts.
👥 読者別の含意
🔬研究者:Provides experimental data and a selection chart for balancing embodied carbon and blast resistance in cladding materials.
🏢実務担当者:Offers guidance for selecting cladding that meets both sustainability and safety requirements.
🏛政策担当者:Highlights the need to incorporate both carbon and blast protection into building standards.
📄 Abstract（原文）
External building cladding provides not only protection from environmental factors, but it can also provide a barrier from extreme events such as explosions. The majority of buildings do not have protective design specifications, but may still be threatened by a terrorist attack or accidental explosion. This study investigates the performance of construction materials exposed to fragment impact, representing a hazard from Improvised Explosive Devices (IEDs). A variety of external cladding materials with different material properties and levels of embodied carbon were subject to steel sphere impacts driven by a gas gun. The V 50 ballistic limit was calculated for each material which enabled the production of a novel material selection chart of Global Warming Potential versus V 50 ballistic limit. Results showed that protection levels are independent of embodied carbon content, and that thickness and areal density have a weak positive correlation with V 50 . Some refinement can be achieved by grouping materials according to their morphology, this also had an effect on the dynamic impact failure mechanisms which are explored. Perforation limits are determined for each material, showing significant variations between material types and differences related to the size of the ball bearing impactor. These factors limit the applicability of deep penetration models. The effect of ball bearing size is analysed concluding that an 8 mm sphere is a repeatable and representative fragment threat. The results show that protection levels varied considerably across the materials tested and all were below the velocity expected from blast driven ball bearings. This highlights the importance of understanding protection levels to ensure that people are not injured through walls that they thought would protect them from external threats.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.1177/20414196261437372first seen 2026-06-29 06:28:48
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