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Mechanical metamaterials utilize geometry to achieve exceptional mechanical properties, including those not typically possible for traditional materials. To achieve these properties, it is necessary to identify the proper structures and…

应用物理 · 物理学 2024-10-11 Jiakun Liu , Adam Taylor , Sage Fulco , Sumukh S. Pande , Kevin T. Turner

In many real-life scenarios, system failure depends on dynamic stress-strength interference, where strength degrades and stress accumulates concurrently over time. In this paper, we consider the problem of finding an optimal replacement…

应用统计 · 统计学 2022-01-04 Phalguni Nanda , Prajamitra Bhuyan , Anup Dewanji

Finishing operations on large-scale composite components like wind turbine blades, including trimming and sanding, often require multiple workers and part repositioning. In the composites manufacturing industry, automation of such processes…

机器人学 · 计算机科学 2021-08-25 Yuqi Ding , Jinwei Ye , Corina Barbalata , James Oubre , Chandler Lemoine , Jacob Agostinho , Genevieve Palardy

With the globalization of manufacturing and supply chains, ensuring the security and trustworthiness of ICs has become an urgent challenge. Split manufacturing (SM) and layout camouflaging (LC) are promising techniques to protect the…

密码学与安全 · 计算机科学 2019-06-07 Satwik Patnaik , Mohammed Ashraf , Ozgur Sinanoglu , Johann Knechtel

We propose a new formal criterion for evaluating secure compilation schemes for unsafe languages, expressing end-to-end security guarantees for software components that may become compromised after encountering undefined behavior---for…

Integrated Circuits (ICs) are the target of diverse attacks during their lifetime. Fabrication-time attacks, such as the insertion of Hardware Trojans, can give an adversary access to privileged data and/or the means to corrupt the IC's…

密码学与安全 · 计算机科学 2023-08-22 Mohammad Eslami , Tiago Perez , Samuel Pagliarini

The development of sputtering facilities, at the moment, is mainly pursued through experimental tests, or simply by expertise in the field, and relies much less on numerical simulation of the process environment. This leads to great efforts…

计算工程、金融与科学 · 计算机科学 2012-09-13 Antonio A. Gentile

An approach to the mechanical behaviour of textile composites at the scale of their constituting fibres, using an implicit finite element simulation code, is proposed in this chapter. The approach is based on efficient methods and…

综合物理 · 物理学 2012-01-24 Damien Durville

Additive manufacturing (AM) is rapidly integrating into critical sectors such as aerospace, automotive, and healthcare. However, this cyber-physical convergence introduces new attack surfaces, especially at the interface between…

密码学与安全 · 计算机科学 2026-01-05 Md Mahbub Hasan , Marcus Sternhagen , Krishna Chandra Roy

Industrial Control Systems (ICSs) rely on insecure protocols and devices to monitor and operate critical infrastructure. Prior work has demonstrated that powerful attackers with detailed system knowledge can manipulate exchanged sensor data…

密码学与安全 · 计算机科学 2022-04-21 Herson Esquivel-Vargas , John Henry Castellanos , Marco Caselli , Nils Ole Tippenhauer , Andreas Peter

The use of composite materials for structures subjected to impacts requires a deep understanding about the dynamic behaviour of the material. To this end, a physically-based computational micromechanics simulation tool has been developed to…

Although recent developments in 3D printing technology have made it possible to fabricate metamaterials with characteristic mechanical properties, it is not easy to fabricate complex shapes containing cavities. In this study, a composite…

应用物理 · 物理学 2023-02-27 Daichi Akamatsu , Yuki Noguchi , Kei Matsushima , Yuji Sato , Jun Yanagimoto , Takayuki Yamada

Design For Manufacturing (DFM) approaches aim to integrate manufacturability aspects during the design stage. Most of DFM approaches usually consider only one manufacturing process, but products competitiveness may be improved by designing…

其他计算机科学 · 计算机科学 2011-06-17 Olivier Kerbrat , Pascal Mognol , Jean-Yves Hascoët

This paper studies attackers with control objectives against cyber-physical systems (CPS). The system is equipped with its own controller and attack detector, and the goal of the attacker is to move the system to a target state while…

最优化与控制 · 数学 2016-07-21 Yuan Chen , Soummya Kar , José M. F. Moura

Context: As Industrial Cyber-Physical Systems (ICPS) become more connected and widely-distributed, often operating in safety-critical environments, we require innovative approaches to detect and diagnose the faults that occur in them.…

软件工程 · 计算机科学 2021-01-15 Barry Dowdeswell , Roopak Sinha , Stephen G. MacDonell

Modern processors are highly optimized systems where every single cycle of computation time matters. Many optimizations depend on the data that is being processed. Software-based microarchitectural attacks exploit effects of these…

密码学与安全 · 计算机科学 2017-06-20 Daniel Gruss

Reverse engineering can be used to derive a 3D model of an existing physical part when such a model is not readily available. For parts that will be fabricated with subtractive and formative manufacturing processes, existing reverse…

计算工程、金融与科学 · 计算机科学 2026-03-24 Jannatul Bushra , Md Habibor Rahman , Mohammed Shafae , Hannah D. Budinoff

Cyber-physical systems (CPS) are composed of various embedded subsystems and require specialized software, firmware, and hardware to coordinate with the rest of the system. These multiple levels of integration expose attack surfaces which…

密码学与安全 · 计算机科学 2018-12-11 Smitha Gautham , Georgios Bakirtzis , Matthew T. Leccadito , Robert H. Klenke , Carl R. Elks

Recent developments in the field of computational modeling of fracture have opened up possibilities for designing structures against failure. A special case, called interfacial fracture or delamination, can occur in loaded composite…

最优化与控制 · 数学 2022-09-13 Sukhminder Singh , Lukas Pflug , Julia Mergheim , Michael Stingl

A common aspect of today's cyber-physical systems is that multiple optimization-based control tasks may execute in a shared processor. Such control tasks make use of online optimization and thus have large execution times; hence, their…

最优化与控制 · 数学 2022-03-14 Mehdi Hosseinzadeh , Bruno Sinopoli , Ilya Kolmanovsky , Sanjoy Baruah