Drucker stability postulate
E554925
The Drucker stability postulate is a fundamental criterion in plasticity theory that asserts materials must not exhibit negative incremental work, ensuring stable and physically realistic material behavior under loading.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Drucker stability postulate canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5927926 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Drucker stability postulate Context triple: [Daniel C. Drucker, notableFor, Drucker stability postulate]
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A.
Outline of a New Approach to the Analysis of Complex Systems and Decision Processes (1973)
"Outline of a New Approach to the Analysis of Complex Systems and Decision Processes" (1973) is a seminal paper by Lotfi A. Zadeh that introduced the concept of fuzzy logic as a framework for modeling and reasoning about complex, uncertain systems and human decision-making.
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B.
Modigliani–Brumberg model
The Modigliani–Brumberg model is an economic life-cycle theory explaining how individuals plan consumption and saving over their lifetimes to smooth living standards despite changing income.
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C.
Models of Man
Models of Man is a seminal book by Herbert A. Simon that explores human decision-making and behavior through the lens of bounded rationality and mathematical models in the social sciences.
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D.
The Entropy Law and the Economic Process
The Entropy Law and the Economic Process is a foundational work in ecological economics that applies the concept of entropy from thermodynamics to critique conventional economic theory and highlight the physical limits to economic growth.
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E.
"The Nature of the Firm"
"The Nature of the Firm" is a foundational 1937 economic essay by Ronald Coase that explains why firms exist and how transaction costs shape their size and structure.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Drucker stability postulate Target entity description: The Drucker stability postulate is a fundamental criterion in plasticity theory that asserts materials must not exhibit negative incremental work, ensuring stable and physically realistic material behavior under loading.
-
A.
Outline of a New Approach to the Analysis of Complex Systems and Decision Processes (1973)
"Outline of a New Approach to the Analysis of Complex Systems and Decision Processes" (1973) is a seminal paper by Lotfi A. Zadeh that introduced the concept of fuzzy logic as a framework for modeling and reasoning about complex, uncertain systems and human decision-making.
-
B.
Modigliani–Brumberg model
The Modigliani–Brumberg model is an economic life-cycle theory explaining how individuals plan consumption and saving over their lifetimes to smooth living standards despite changing income.
-
C.
Models of Man
Models of Man is a seminal book by Herbert A. Simon that explores human decision-making and behavior through the lens of bounded rationality and mathematical models in the social sciences.
-
D.
The Entropy Law and the Economic Process
The Entropy Law and the Economic Process is a foundational work in ecological economics that applies the concept of entropy from thermodynamics to critique conventional economic theory and highlight the physical limits to economic growth.
-
E.
"The Nature of the Firm"
"The Nature of the Firm" is a foundational 1937 economic essay by Ronald Coase that explains why firms exist and how transaction costs shape their size and structure.
- F. None of above. chosen
Statements (41)
| Predicate | Object |
|---|---|
| instanceOf |
material stability criterion
ⓘ
stability postulate in plasticity theory ⓘ |
| appliesIn |
rate-independent plasticity
ⓘ
small-strain plasticity formulations ⓘ |
| appliesTo |
incremental loading processes
ⓘ
inelastic materials ⓘ plastic materials ⓘ |
| assumes | incremental work is defined as stress increment times plastic strain increment ⓘ |
| category |
constitutive modeling assumption
ⓘ
material stability postulate NERFINISHED ⓘ |
| contrastsWith |
materials exhibiting strain softening
ⓘ
non-associated plastic flow that may violate stability ⓘ |
| coreIdea |
incremental plastic work must be nonnegative
ⓘ
materials must not exhibit negative incremental work ⓘ |
| ensures |
incremental work conjugacy between stress and strain
ⓘ
physically realistic material behavior ⓘ stable material response under loading ⓘ |
| field |
continuum mechanics
ⓘ
plasticity theory ⓘ solid mechanics ⓘ |
| goal |
ensure uniqueness and stability of boundary value problem solutions
ⓘ
prevent non-physical predictions in plasticity models ⓘ |
| historicalContext | introduced in mid-20th century plasticity literature ⓘ |
| implies |
monotonicity of the stress–strain relation in plastic range
ⓘ
no material instability under small perturbations ⓘ no spontaneous energy generation by the material ⓘ |
| influences |
criteria for numerical convergence in nonlinear analysis
ⓘ
design of elastoplastic constitutive laws ⓘ |
| mathematicalFormulation | Δσ_ij Δε_ij^p ≥ 0 for all admissible increments ⓘ |
| namedAfter | Daniel C. Drucker NERFINISHED ⓘ |
| relatedTo |
convexity of the yield surface
ⓘ
maximum plastic dissipation principle ⓘ normality flow rule ⓘ second law of thermodynamics ⓘ |
| requires |
no negative plastic dissipation under admissible loading paths
ⓘ
positive or zero plastic dissipation ⓘ |
| usedBy |
engineers analyzing metal plasticity
ⓘ
researchers developing plasticity theories ⓘ |
| usedFor |
assessing stability of constitutive models
ⓘ
deriving conditions on yield functions and flow rules ⓘ validating plasticity models in finite element analysis ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Drucker stability postulate Description of subject: The Drucker stability postulate is a fundamental criterion in plasticity theory that asserts materials must not exhibit negative incremental work, ensuring stable and physically realistic material behavior under loading.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.