4.3 Article

Designing a disruption-aware supply chain network considering precautionary and contingency strategies: a real-life case study

期刊

RAIRO-OPERATIONS RESEARCH
卷 55, 期 5, 页码 2827-2860

出版社

EDP SCIENCES S A
DOI: 10.1051/ro/2021123

关键词

Resilient system; network non-resiliency; robust optimization; disruption; operational risk

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A multi-objective formulation is proposed to help supply chains cope with disruptions and uncertainty, utilizing methods such as controlling network non-resiliency and robust optimization. Results show that preventive and mitigation resilience strategies significantly enhance the supply chain's capabilities, with multiple sourcing and lateral transshipment leading to the greatest cost-efficiency.
Due to the high risk in the business environment, supply chains must adopt a tailored mechanism to deal with disruptions. This research proposes a multi-objective formulation to design a robust and resilient forward supply chain under multiple disruptions and uncertainty. The mentioned objective functions include minimizing the total cost, environmental impacts, and the network non-resiliency associated with the supply chain simultaneously countered using an augmented epsilon-constraint method. A Mulvey robust optimization approach is also utilized to deal with uncertainty. Ultimately, the developed model is validated based on three datasets associated with a case study of the steel industry. The results indicate that preventive and mitigation resilience strategies have significantly promoted the supply chain's capabilities to deal with disruptions. Controlling network resiliency via non-resiliency measures has also created a risk-aware and robust structure in the incidence of disturbances. Numerical results reveal that multiple sourcing, lateral transshipment, and fortification of facilities will lead to the greatest cost-efficiency in the case study. Observations also indicate that the fortified supply chain will be highly economically viable in the long run due to the reduction of costs resulting from lost sales, unnecessary inventory holding, and the company's credit risk.

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