ENGINEERING ANALYSIS OF MEDICINE: A STRUCTURAL MECHANICS AND LOAD CAPACITY FRAMEWORK FOR PHYSIOLOGICAL STABILITY, DISEASE, AND CANCER

Abstract

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Conventional medical analysis relies predominantly on biological mechanisms, empirical observation, and statistical correlation.While effective for diagnosis and treatment, such approaches often lack a unified mechanical framework capable of predicting instability, failure thresholds, and collapse modes.This paper introduces an engineering-based analytical framework for medicine, modeling the human body as a multi-domain engineered system governed by structural mechanics, fluid dynamics, control theory, and reliability engineering.Physiological demands are formulated as applied loads, while biological strength, adaptability, redundancy, and repair mechanisms are treated as capacity components.A time-dependent Demand-Capacity Ratio, DCR(t)-directly analogous to structural safety indices is proposed to classify health, disease progression, cancer development, and collapse.Structural failure concepts including yielding, fatigue, buckling, progressive collapse, and internal defect growth are mapped to medical conditions such as chronic disease, fracture, shock, cancer invasion, and multi-organ failure.Real clinical cases, numerical examples, and cancer-specific models demonstrate that medical failure follows the same deterministic logic as engineered structural failure.