astronomy

João Arménio Correia Martins

João Arménio Correia Martins is a astronomy topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand João Arménio Correia Martins rather than just read about it. In short: João Arménio Correia Martins (November 11, 1951 – August 5, 2008) was a Portuguese engineer. Biography Martins was born on November 11, 1951, at the southern town of Olhão in Portugal.

Key takeaways

João Arménio Correia Martins belongs to astronomy; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect João Arménio Correia Martins to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of João Arménio Correia Martins from memory before moving on to harder problems.

Reference excerpt

João Arménio Correia Martins (November 11, 1951 – August 5, 2008) was a Portuguese engineer.

Biography Martins was born on November 11, 1951, at the southern town of Olhão in Portugal. He attended high school at the Liceu Nacional de Faro which he completed in 1969. Afterwards João Martins moved to Lisbon where he was graduate student of Civil Engineering at Instituto Superior Técnico (IST) until 1976. He was a research assistant and assistant instructor at IST until 1981. Subsequently, he entered the graduate school in the College of Engineering, Department of Aerospace Engineering and Engineering Mechanics of The University of Texas at Austin, United States. There he obtained a MSc in 1983 with a thesis titled A Numerical Analysis of a Class of Problems in Elastodynamics with Friction Effects and a PhD in 1986 with a thesis titled Dynamic Frictional Contact Problems Involving Metallic Bodies, both supervised by Prof. John Tinsley Oden. He returned to Portugal in 1986 and became assistant professor at IST. In 1989 he became associate professor and in 1996 he earned the academic degree of "agregado" from the Technical University of Lisbon. Later, in 2005, he became full professor in the Department of Civil Engineering and Architecture of IST. His areas of research include contact solid mechanics, nonlinear dynamics and instability phenomena, mathematical methods and numerical techniques for the solution of solid mechanics problems, nonlinear constitutive laws in solid mechanics and biomechanics. His PhD thesis was on models and computational methods for the study of dynamic behaviour of metallic bodies subjected to dry frictional contacts. It contains (i) a detailed study of phenomenological interface constitutive laws (ii) a constitutive interface law incorporating the normal deformability of the interface and the Coulomb friction law, (iii) formulations of the dynamic and steady sliding contact problems together with proofs on existence and uniqueness of solutions, (iv) numerical techniques and algorithms for the study of the dynamic and steady sliding problems, (v) numerical finite element results and parametric studies on the stability of steady sliding and on friction induced oscillations. Prof. João Martins was member of the general assembly of IUTAM and served as vice-president of the Portuguese Association for Theoretical, Applied and Computational Mechanics (APMTAC) in 2006 and 2007. He also served as president of the ICIST research institute in 2003, 2004, 2007 and 2008. João Martins died unexpectedly in his home in Lisbon on 5 August 2008. In 2008 the Instituto Superior Técnico created the Professor João Arménio Correia Martins Award to recognize undergraduate students with a solid background in the fields of structural mechanics and computational mechanics. In 2009 the Associação Portuguesa de Mecânica Teórica, Aplicada e Computacional created the Young Researcher Award Professor João Martins. In 2009 the Sociedade Portuguesa de Biomecânica created the Professor João Martins Award to recognize the work of young researchers in the field of biomechanics.

List of publications Theses:

“A numerical analysis of a class of problems in elastodynamics with friction effects”, M.Sc. Thesis, The University of Texas at Austin, 1983. “Dynamic frictional contact problems involving metallic bodies”, Ph.D. Dissertation, The University of Texas at Austin, 1986. Peer reviewed international journals:

… excerpt ends here. Continue reading the full article.

Illustrations

João Arménio Correia Martins illustration

Worked examples

Example 1 — a first encounter with João Arménio Correia Martins

Start with the simplest possible case. Write down what João Arménio Correia Martins claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In astronomy, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to João Arménio Correia Martins before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about João Arménio Correia Martins ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of João Arménio Correia Martins

In research: João Arménio Correia Martins appears in astronomy research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses João Arménio Correia Martins in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: João Arménio Correia Martins is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1951 births, 2008 deaths, 20th-century Portuguese engineers, so understanding it makes those chapters shorter.
In everyday life: Look for João Arménio Correia Martins outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

Ask Teacher Smith questions about this articleOpens your AI tutor with a question about “João Arménio Correia Martins” →

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study João Arménio Correia Martins in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what João Arménio Correia Martins means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain João Arménio Correia Martins out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is João Arménio Correia Martins in simple terms?

João Arménio Correia Martins (November 11, 1951 – August 5, 2008) was a Portuguese engineer. Biography Martins was born on November 11, 1951, at the southern town of Olhão in Portugal.

Why does João Arménio Correia Martins matter?

Because it connects several astronomy ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study João Arménio Correia Martins?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on João Arménio Correia Martins.